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mariarad [96]
3 years ago
8

Simplify each expression and identify the units you and two friends all have the same real meal for lunch.Each meal costs c doll

ars plus a tax of 6% of the cost and a tip of 20% of the cost. You use a $10 gift certificate. You can represent the total cost with the expression 3c+(0.06+0.20)(3c)-10
Mathematics
1 answer:
aev [14]3 years ago
4 0
T.C = <span>3c+(0.06+0.20)(3c)-10
3c = cost of 3 meals
3c(0.06 + 0.20) = tax and tip expenses
10 = value of gift certificate
T.C = 3c + 0.26*3c - 10 = 3.78c - 10.</span>
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Find the missing side of each triangle. i need help!!!
Nezavi [6.7K]

Answer:

√161 yd

Step-by-step explanation:

Hi there!

We're given a right triangle (notice the right angle), the measure of one of the legs (one of the sides that make up the right angle) as 8 yd, and the hypotenuse (the side opposite to the right angle) as 15 yd.

We need to find x, which is the other leg in the triangle

If we are given 2 sides and need to find a third, we can use Pythagorean Theorem, which states that a²+b²=c² if a and b are legs and c is the hypotenuse

In this case, a=8, b=x, and c=15

So let's substitute those values into the formula

(8)²+x²=(15)²

raise everything to the second power

64+x²=225

subtract 64 from both sides

x²=161

take the square root of both x and 161

x=√161, x=-√161

-√161 cannot work in this case, as distance cannot be negative.

The question asks for the answer to be in simplified radical form, but √161 cannot be simplified down further

so the answer is <u>√161 yd</u>

Hope this helps! :)

3 0
2 years ago
Karl records the number of city blocks from his house to each of his friends houses. which statement is supported by the data?
Musya8 [376]

Answer:

Step-by-step explanation:

I think option 4 is the correct answer

5 0
3 years ago
What shapes are not 3D
Over [174]
Square
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Hexagon
Pentagon
Rhombus
Kite
Parallelogram
Trapezium

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Hope it helps...
8 0
2 years ago
Please help me I DO NOT UNDERSTAND
stepladder [879]
Are they asking for the surface area?
8 0
2 years ago
I=$720, P=$1000, r=9%
UNO [17]
I = PRT

720 = (1,000)(0.09)(t)
720 = 90(t)
720/90 = t
8 = t  or t = 8

I am not sure if it is terms  of months or years but 8 is the answer. hope it helps :)
7 0
3 years ago
Read 2 more answers
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